Stovepipe-drum.



L. J. B. scxmmf STOVEHPB DRUM. A{Lrxmoynmi Hmm Nov. g, 1901.

mama Septk 15,1908.

2 SHEETS-SHEET 2.

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'LOUIS J. B. SCHN'JG, OF SAGINAW, MICHIGAN.

-s'rovEPIPEmRUM T ofi-ll whom it may concern.- y

Be it known that I, LoUrs J. B. SCHNUG, a

i citizen of the United States, residing at Saginaw, in the count-y of Saginaw and State of Michigan, have invented new and useful Improvements in Stovepipe-Dru1ns, of which the following is a specification.

This invention is an improved stove ipe drum for utilizing the otherwise waste ieat of heated roducts of combustion which pass through t. ie stove pipe for heating air and discharging such heated air into a room, as

well as for heating by radiation, and whichv consists in the construction, combination and arrangement of devices hereinafter described and claimed.

T he object of my invention is to provide a novel forir` of'heating drum of simple construction which may be readily taken apart and which maybe used in the pipe of a stove or heater in which any kind of fuel is burned.

In the accompanying drawings, Figure 1 is an elevation of a drum embodying my ilnprovements. Fig. l is a vertical longitudinal sectional view of the same taken on the )lane indicated by the line 2 2' of Fig. 3. Fig. 3 is an end elevation of the same. Fig.

4 is atransverse central sectional View ofthe same. Fig. 5 is a detail pers ective view of the basket. Fig. 6 is a det-ai inverted plan view of one of the heads of the drum.

The outer casing of my improved drum comprises a cylindrical sheet vmeta-l jacket 1 and a pair of headsl 2 which are preferably made of east metal and each of which is provided with a flange 3, an opening 4, a flange collar 5 extending around said opening for the attachment of a stove pipe, and a )luralityof openings 6, around each of whic is an inwardly extending tubular collar 7. The

ends of the jacket 1 are placed on the flanges 3 of the heads and are secured thereto by means of screws S. lVhere the drum is to be supported by legs, such legs may be secured to the drum by means of such set screws at one end of the drum.

In the central portion of the drum is an air heating box 9, which is made of cast metal, is of double conical form, tapering in opposite directions, and is provided on its u er and lower sides with openings 10 and wit 1 tubular collars 1 1 around and extending from said openingstoward the collars 7 of the heads. It will be observed, by reference to the drawings, that the openings in the upper side'of Specification of Letters Patent.

the box are out of line with those in the lower side thereof. v I

The box is connected to the heads of the drum by air conducting and heat-ing tubes 12, the ends of which are placed on the eollars 7 of the heads and the collars 11 of the box. It will be observed, by referencefto the drawings, that said air heating and conducting tubes diverge toward the ends of the drum and that they communicate with the outer air and with the box and coact with the box in forming ducts which extend throughwithout communica-ting with the interior. of the drum.

Owing tothe double conical form of the box, the same serves to deflect the heat which passes through the drum outwardly against the. jacket 1 to increase the heat radiating etl'ect of the drum. Cold air from the lower portion of a room is drawn into the lower tubes llfpasses therefrom and into the box and from the latter, through the u )per tubes 12 and the upper drum head bacl into the room, at a higher point. As the air' thus passesv through the tubes 12 and the box, the same becomes heated, as will be understood, and hence my improved drum is eHective not only for heating by radiation but also for heating air from the room and expelling such heated air back into the atmosphere of the room. Owng to the shape of the box and the arrangement of the tubes which connect it to the heads of the drum, said box and tubes form minimum obstruction to the soot and other solid products of combustion, with the result that the drinn does not readily become charged with soot,.even when used in connection with the pipe leading from a stove or heater in which soft coal or other bituminous fuel is burned. It will be understood that by irstiremoving one of the heads, which may be readily done by removing the screws S that secure such head, all the interior parts of the drum may be readily removed from the casing to facilitate the cleansing of the drum and to also facilitate repairs. -It will also be understood that in the event that any of the interior parts UNITED srl/tires Ter/tram* @FICE- Patented sept. 1 5, 190e.l A Applicata@ mea November e, 1901. serial No. 400,978.'

should become worn out or broken, the same ings, said collars outer casing open at its ends, heads each pro-l vided with an opening for the attachment of a smoke pipe, inwardly extending flanges fitting in the ends of the casing, and further provided with air openings and collars around and extending inwardly from said air openconverging toward the cening` tubes in said casing having their their ends on the collars of the said box and `outer ends on the collars of the heads, said 15 air heating tubes converging toward the box and forming supporting means therefor.

In testimony Whereo, I a-flx my signature in presence of two witnesses.

l Louis J. B. soHNUG. Witnees:

C. H. QUINN,

WL. E. SHAW. 

